Thanks David, and congratulations to all contributors! Best wishes,
Gerold On Wed, 2011-07-20 at 15:28 +0100, David Chisnall wrote: > Hi Everyone, > > I've just pushed the 1.5 release of libobjc2 (yes, I said I would do this a > week ago, but PyObjC uncovered a couple of bugs that I wanted to fix first). > Thanks to Niels, Quentin, Sebastian, Wolfgang, Ludovic, and everyone else who > helped me find and fix bugs and test new features. > > This is an important release for GNUstep, because it's one of the few times > when we're not playing catchup with Apple. This release of the runtime > supports all of the Objective-C language features supported by the compiler > that Apple ships for OS X 10.7 and iOS 5 under the brand Apple's LLVM > Compiler 3[1]. > > This includes support for automatic reference counting, which is now the > default development mode for OS X and is fully supported by the runtime, in > combination with LLVM / Clang trunk. > > David > > [1] Actually a snapshot of LLVM / Clang trunk from between 2.9 and 3.0. LLVM > releases don't always happen at convenient times for Apple, so the use their > own release numbers. > > GNUstep Objective-C Runtime 1.5 > =============================== > > This is the sixth official release of the GNUstep Objective-C runtime (a.k.a. > libobjc2). This runtime was designed to support the features of Objective-C 2 > for use with GNUstep and other Objective-C programs. Highlights of this > release include: > > - Support for Apple-compatible garbage collection APIs, along with extensions > to support CoreFoundation-style explicit reference counting in a garbage > collected environment. This uses the Boehm garbage collector and is enabled > by specifying boehm_gc=yes when building. This requires version 7.1 or > later > of libgc. Code compiled with -fobjc-gc can be mixed with code that > implements normal reference counting and with code compiled with > -fobjc-gc-only. The runtime supports both GC and non-GC code when compiled > with GC support and will automatically select the correct behavior depending > on the loaded code. > > - The runtime will now use Boehm GC for several internal data structures, if > it > is built with GC enabled. This avoids the need for defensive programming > with respect to thread safety in several places. > > - This is the first release to provide a superset of the functionality > provided > by the Mac Objective-C runtime, as shipped with OS X 10.6. > > - Full support for Automatic Reference Counting (ARC), compatible with OS X > 10.7 and iOS 5, including support for __weak references. > > - The LLVM optimisation passes have been improved and better tested. Code > compiled with them now passes the EtoileFoundation test suite. > > You may obtain the code for this release from subversion at the following > subversion branch: > > svn://svn.gna.org/svn/gnustep/libs/libobjc2/1.5 > > Alternatively, a tarball is available from: > > http://download.gna.org/gnustep/libobjc2-1.5.tar.bz2 > > The runtime library is responsible for implementing the core features of the > object model, as well as exposing introspection features to the user. The > GNUstep runtime implements Apple's Objective-C Runtime APIs, and a small > number > of GCC APIs for legacy compatibility. > > This library is based on the Étoilé Objective-C Runtime, an earlier research > prototype, and includes support for non-fragile instance variables, > type-dependent dispatch, and object planes. It is fully compatible with the > FSF's GCC Objective-C ABI and also implements a new ABI that is supported by > Clang and Étoilé's LanguageKit and is required for some of the newer features. > > Although the runtime has been tested by several people, and is being used > extensively by the Étoilé project, it is entirely new (MIT licensed) code and > may still contain bugs. If you come across any problems, please report them > to > the GNUstep Developer mailing list <[email protected]>. > > _______________________________________________ > Discuss-gnustep mailing list > [email protected] > https://lists.gnu.org/mailman/listinfo/discuss-gnustep -- Gerold Rupprecht <[email protected]> 10, rue Louis-Curval CH-1206 Genève, Suisse Mobile: +41 (0) 79 914 29 52
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